New Posts New Posts RSS Feed: Icon
  FAQ FAQ  Forum Search   Register Register  Login Login

Icon

 Post Reply Post Reply Page  123 18>
Author
yellowwelly View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 24 May 13
Online Status: Offline
Posts: 2003
Post Options Post Options   Quote yellowwelly Quote  Post ReplyReply Direct Link To This Post Topic: Icon
    Posted: 02 Dec 13 at 4:37pm
Thank you
Back to Top
blaze720 View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 28 Sep 05
Location: United Kingdom
Online Status: Offline
Posts: 1635
Post Options Post Options   Quote blaze720 Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 13 at 4:33pm
Icon Mast suitability ?

Well I think GRF will know soon enough with his 'Iconish' project.  The 50mm mast on Icon is deck stepped with lowers but I understand the GRF / Rob White concept is to have the mast  (lengthened) and a few cm further back and stepped off the front of the central spine - with a mast gate on the back of the cockpit bulkhead.   This will allow the rig to be bought back sufficiently to have a decent chute hoop in front of the forestay ... as well as adjusting the overall balance and stiffenting things up a bit.   The mast tubes are already relatively stiff and are identical to many used in the Contender class ... so I guessing that 'person dangling' would be fine. 

Icon has not gone that way but the hull and basics were in part determined to be able to use the hull with varied deck mouldings allowing different configurations in time ... so not that much different to the NS14 / MG14 hull commonality.     

Jib cleat unit ?  The Icon CA secretary (Mike Bell) developed a prototype one for his boat and the idea was then taken further by Devoti a few months back .... by then in carbon of course.   They can be retrofitted and I know that 'Icon 15' at least has a production one in the UK  (there may be more) .... we will encourage Devoti to field some photos if they don't pick up on this thread...

Mike L.

Back to Top
yellowwelly View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 24 May 13
Online Status: Offline
Posts: 2003
Post Options Post Options   Quote yellowwelly Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 13 at 12:28pm
I guess the benefit of the self tacker for single handing is the single string aspect.  To give credit where it's due, the Jib arrangements on the Cherub I had were pretty sweet for single handing... all I needed to do was to lead the sheet back a bit to the mainsheet turret.  

That K1 set up looks all wrong.... I think I'd rather just go for old fashioned Laser2 type fittings!
Back to Top
JimC View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 17 May 04
Location: United Kingdom
Online Status: Offline
Posts: 6660
Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 13 at 12:18pm
Oh, don't get me wrong, I'd *never* be without leech control of the jib on a two sail boat.

If I were doing a two hander for myself now I would without doubt have a dangly pole and no self tacking arrangement. At the moment I think its by far the most flexible and tunable arrangement when there are sufficient hands to manipulate it.

But on a singlehander the question is how best to organise the leech control when there are not sufficient hands. On a Canoe the sliding seat makes separate jib sheets much more manageable than on a trapeze boat, so I think the arguments are fairly finely balanced each way, as they would be on a low powered narrow boat. On a trapeze or winged singlehander with a jib a self tacking arrangement and thus the spar on the foot and "kicker" to the mast would be the way to go without doubt.

Hmm, not at all sure about that K1 arrangement. Might be the worst of all worlds! I've just had a thought about what might be a way to do the extended spar kicker arrangement without a line going right up the jib... Must do some sketches!

Edited by JimC - 02 Dec 13 at 12:22pm
Back to Top
Guests View Drop Down
Guest Group
Guest Group
Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 13 at 12:09pm
Not sure I would recommend it, but I've seen this set up on a K1:



Not fitted here James, but imagine jib cleats fitted on the spine fwd of the board.
Back to Top
yellowwelly View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 24 May 13
Online Status: Offline
Posts: 2003
Post Options Post Options   Quote yellowwelly Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 13 at 11:42am
I'd tend to gut instinct in line with Jim there... keep it simple and my thoughts behind this would be to dump the pole tbh.... goose winging ought to be a very light wind affair (I used to do it singlehanded in a 12 in light winds, using a loose cut down oppy sprit if I could get forward to put it on, if not, sail without the pole)  But it usually paid to sail higher angles in any sort of breeze one up.  

Mike- are there any public fotos of the central spine jib sheeting arrangements?


Edited by yellowwelly - 02 Dec 13 at 11:44am
Back to Top
JimC View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 17 May 04
Location: United Kingdom
Online Status: Offline
Posts: 6660
Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 13 at 11:38am
I'm not at all convinced that a self tacking jib and a dangly pole interact well.
With a self tacking jib a better match is probably the setup seen on several recent canoes where a spar on the foot of the jib is extended some way past the luff, and then a control line is run from the end of the spar up to the mast at around jib halyard height as a sort of kicking strap for the jib.
Back to Top
yellowwelly View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 24 May 13
Online Status: Offline
Posts: 2003
Post Options Post Options   Quote yellowwelly Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 13 at 11:37am
cheers Mike,

Second question- is the mast okay to take a single trap wire?  (Assuming it was customised/reinforced at the attachment points)

YW
Back to Top
blaze720 View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 28 Sep 05
Location: United Kingdom
Online Status: Offline
Posts: 1635
Post Options Post Options   Quote blaze720 Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 13 at 11:31am
Yellowwelly

It would not be impossible at all but the boat is not designed for it and no trials /tests have been performed  ... I use a crew myself most of the time but just occasionally will single-hand one if it is very light. 

'03' like all other Icons is fitted with track mounted jib sheet Harken ratchet blocks on the cockpit floor  and I have a pair of 'opposite side' cleats on 03 just behind the shrouds and a continuous jibsheet.  Single handed tacking just takes a bit of planning and practice to get tight - but it is not difficult.   Many boats now have jib cleats on the central spine just in front of the plate case - more conventional and might be easier.

The possible interactions between the dangly pole and a self tacking set up would also need to be thought through carefully.   It might be something GRF tries if he does go for asymetric in his project  as that might be more practical  - I'm assuming with a spinnaker / trapeze he would not need/want a dangly pole.

Mike L.



Back to Top
yellowwelly View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 24 May 13
Online Status: Offline
Posts: 2003
Post Options Post Options   Quote yellowwelly Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 13 at 11:18am
could the icon jib realistically be fitted with self-tacking gear?

cheers
Back to Top
 Post Reply Post Reply Page  123 18>

Forum Jump Forum Permissions View Drop Down

Bulletin Board Software by Web Wiz Forums® version 9.665y
Copyright ©2001-2010 Web Wiz
Change your personal settings, or read our privacy policy